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Answers by TawnyaI60415
0
votes
41
views
What is the effect of changing the concentration of reactants on the reaction rate and sustainability in the reaction between sodium thiosulfate and hydrochloric acid?
answered
Feb 22
in
Chemical kinetics
0
votes
32
views
What is the molecular geometry and bond angles of methane (CH4) molecules? How do they affect the molecule's properties?
answered
Feb 21
in
Quantum Chemistry
0
votes
27
views
What is the mechanism of electrophilic addition of hydrogen bromide to propene, and how does this reaction differ from the addition of hydrogen chloride to propene?
answered
Feb 20
in
Organic Chemistry
0
votes
33
views
How can we use quantum chemistry to predict the regioselectivity of a Diels-Alder reaction between two dienes and a dienophile?
answered
Feb 14
in
Quantum Chemistry
0
votes
57
views
How can we use quantum chemistry to calculate magnetic susceptibility values for a given molecule or material and how can that information be used to predict the magnetic behavior of the substance in different conditions?
answered
Feb 14
in
Quantum Chemistry
0
votes
32
views
What are the mechanical and thermal properties of polymer-based composites used in aerospace applications, and how do they compare to traditional metal alloys?
answered
Feb 14
in
Polymer Chemistry
0
votes
75
views
What are the different types of isomerism that exist in organic compounds? Provide an example of each type and explain their structural differences.
answered
Feb 13
in
Organic Chemistry
0
votes
43
views
How can the properties of a polymer be modified to create a smart material that is sensitive to changes in temperature?
answered
Feb 10
in
Polymer Chemistry
0
votes
113
views
What is the difference between an amino acid and a nucleotide, and how do their structures contribute to their respective functions in the body?
answered
Jan 31
in
Organic Chemistry
0
votes
79
views
Calculate the heat of formation of methane (CH4) given the standard enthalpies of formation of carbon dioxide (CO2), water (H2O), and oxygen gas (O2).
answered
Jan 23
in
Chemical bonding
0
votes
115
views
A chemistry student wants to prepare a solution that contains 25% ethanol (by volume) and the rest is water. The enthalpy of mixing for ethanol and water is -21.2 kJ/mol. How much heat is evolved when the student makes 500 mL of the solution?
answered
Jan 22
in
ThermoChemistry
0
votes
101
views
A chemistry student is given a 10 mL sample of a solution containing chloride ions and sulfate ions, and is asked to determine the mass of each ion present in the sample. The student knows that the total mass of the solution is 12.25 g, and that the density of the solution is 1.225 g/mL. The student also knows that the mass percent of chloride ions in the solution is 5%, and the mass percent of sulfate ions is 10%. Using mass balance calculations, what is the mass of chloride ions and sulfate ions present in the sample?
answered
Jan 22
in
Analytical Chemistry
0
votes
93
views
Who established the law of proximity?
answered
Jan 20
in
Psychology
0
votes
29
views
What is the temperature at which a substance freezes known as?
answered
Jan 7
in
Science
0
votes
56
views
What celestial body in the solar system makes up most of its total mass?
answered
Jan 6
in
Science
0
votes
50
views
What are plant-like protists called?
answered
Jan 3
in
Science
0
votes
39
views
The domain geometry for a molecule with four electron pairs is called what?
answered
Jan 2
in
Science
0
votes
103
views
The distance that light can travel in a year is known as what?
answered
Dec 31, 2024
in
Science
0
votes
63
views
How many neutrons do 99% of carbon atoms have?
answered
Dec 30, 2024
in
Science
0
votes
47
views
Because core electrons are closer to the nucleus, they are not involved in what?
answered
Dec 30, 2024
in
Science
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